CN213711124U

CN213711124U - Connector for shaft seal heater

Info

Publication number: CN213711124U
Application number: CN202022238873.XU
Authority: CN
Inventors: 朱俊如; 施帆
Original assignee: Zhenjiang Dongxin Electrical Equipment Co ltd
Current assignee: Zhenjiang Dongxin Electrical Equipment Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-16
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a connector for bearing seal heater, including the switching pipe, the both ends difference fixedly connected with second flange and the third flange of switching pipe, the both sides of switching pipe are provided with first connecting pipe and second connecting pipe respectively, the first flange of one end fixedly connected with of first connecting pipe, the one end fixedly connected with fourth flange of second connecting pipe, be provided with a plurality of first bolts between first flange and the second flange. The utility model discloses in, this device is through setting up the stagnant flow pipe in the switching is intraductal, and the bearing seal steam leakage of the first connecting pipe of second connecting pipe flow direction is when the switching pipe, and gas leakage is passed through by the filter screen, because the comdenstion water that the condensation produced can pile up in the left side of stagnant flow pipe, and the filter screen setting is at the intermediate position of stagnant flow pipe, and the comdenstion water can not be through the filter screen toward flowing back to can the backward flow of separation comdenstion water, the rethread is opened the choke valve and can be discharged the comdens.

Description

Connector for shaft seal heater

Technical Field

The utility model relates to a connector technical field especially relates to a connector for bearing seal heater.

Background

The shaft seal heater is a device for recovering shaft seal leakage steam and heating condensed water by using heat of the shaft seal leakage steam, so that energy loss is reduced, and heat efficiency of a unit is improved. When the steam turbine adopts the interior formula of letting out bearing seal system, generally establish the bearing seal heater and be used for heating condensate water or demineralized water, retrieve the bearing seal and leak out vapour to reduce bearing seal and leak out vapour and heat loss, take out the vapour gas mixture of steam turbine gland seal system, prevent that steam from leaking to the steam engine room and going in the oil system from the tip vapour seal and polluting the environment and destroying oil quality, these vapour gas mixture gets into the bearing seal cooler and is cooled into water, heats the condensate water, and remaining not gas that condenses is discharged to the atmosphere, and improve the environmental condition in workshop.

Need use the connector to carry out the switching between the connecting pipe of bearing seal heater bearing seal, current connector is mostly simple flange joint spare, and the bearing seal leaks vapour and produces the comdenstion water through the recondenstion when connecting pipe and adapter, and current adapter can not carry out the separation to the comdenstion water.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a connector for a shaft seal heater.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a connector for bearing seal heater, includes the switching pipe, the both ends difference fixedly connected with second flange and the third flange of switching pipe, the both sides of switching pipe are provided with first connecting pipe and second connecting pipe respectively, the first flange of one end fixedly connected with of first connecting pipe, the one end fixedly connected with fourth flange of second connecting pipe, be provided with a plurality of first bolts between first flange and the second flange, it is a plurality of equal threaded connection has first nut on the first bolt, be provided with a plurality of second bolts between third flange and the fourth flange, it is a plurality of equal threaded connection has the second nut on the second bolt, the inside of switching pipe is provided with the stagnant flow pipe.

Preferably, one end of the first flange is connected with the second flange in an inserting manner, and one end of the fourth flange is connected with the third flange in an inserting manner.

Preferably, a filter screen is embedded in one end of the flow stopping pipe, and a fixing ring is fixedly connected to the other end of the flow stopping pipe.

Preferably, the adapter tube includes reinforced coating, anticorrosive coating and sealing layer, the reinforced coating sets up in the outside, the anticorrosive coating sets up the inboard at the reinforced coating, the sealing layer sets up the inboard at the anticorrosive coating.

Preferably, the lower extreme fixedly connected with drain pipe of switching pipe, be provided with the choke valve on the drain pipe.

Preferably, the first connecting pipe, the first flange, the second flange, the third flange, the fourth flange and the second connecting pipe are all made of aluminum magnesium alloy, and the first flange, the first connecting pipe, the second flange, the third flange, the adapter pipe, the fourth flange and the second connecting pipe are all in welded connection.

The utility model discloses following beneficial effect has:

1. this a connector for bearing seal heater, when using, through the first connecting pipe that sets up, first bolt, first flange, the second flange, first nut, the switching pipe, the third flange, the fourth flange, the second connecting pipe, the second bolt, the second nut, the choke valve, the drain pipe, the back up coat, the anticorrosive coating, the sealing layer, gu fixed ring, the stagnant flow pipe, the filter screen, this device is through setting up the stagnant flow pipe in the switching pipe, the bearing seal steam leakage of first connecting pipe of second connecting pipe flow direction is when the switching pipe, gas leakage is passed through by the filter screen, because the comdenstion water that the condensation produced can pile up in the left side of stagnant flow pipe, the filter screen sets up the intermediate position at the stagnant flow pipe, the comdenstion water can not move toward the backward flow through the filter screen, thereby can the backward flow of separation comdenstion water, the rethread is opened the.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention.

Illustration of the drawings:

1. a first connecting pipe; 2. a first bolt; 3. a first flange; 4. a second flange; 5. a first nut; 6. a transfer tube; 7. a third flange; 8. a fourth flange; 9. a second connecting pipe; 10. a second bolt; 11. a second nut; 12. a throttle valve; 13. a drain pipe; 14. a reinforcement layer; 15. an anticorrosive layer; 16. a sealing layer; 17. a fixing ring; 18. a flow stopping pipe; 19. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides an embodiment: a connector for a shaft seal heater comprises an adapter tube 6, wherein two ends of the adapter tube 6 are respectively and fixedly connected with a second flange 4 and a third flange 7, two sides of the adapter tube 6 are respectively provided with a first connecting tube 1 and a second connecting tube 9, one end of the first connecting tube 1 is fixedly connected with a first flange 3, one end of the second connecting tube 9 is fixedly connected with a fourth flange 8, a plurality of first bolts 2 are arranged between the first flange 3 and the second flange 4, a plurality of first nuts 5 are all in threaded connection with the first bolts 2, a plurality of second bolts 10 are arranged between the third flange 7 and the fourth flange 8, a plurality of second nuts 11 are all in threaded connection with the second bolts 10, a flow stopping tube 18 is arranged inside the adapter tube 6, one end of the first flange 3 is inserted and connected with the second flange 4, one end of the fourth flange 8 is inserted and connected with the third flange 7, and is inserted and connected, the sealing performance between the first flange 3 and the second flange 4, and between the fourth flange 8 and the third flange 7 is enhanced, a filter screen 19 is embedded at one end of the flow stopping pipe 18, a fixing ring 17 is fixedly connected at the other end of the flow stopping pipe 18, the filter screen 19 is arranged in the middle of the flow stopping pipe 18, air leakage can pass through the filter screen 19, backflow of condensed water can be prevented, the flow stopping pipe 18 can be fixed in the adapter pipe 6 by the arranged fixing ring 17, the adapter pipe 6 comprises a reinforcing layer 14, an anticorrosive layer 15 and a sealing layer 16, the reinforcing layer 14 is arranged on the outer side, the anticorrosive layer 15 is arranged on the inner side of the reinforcing layer 14, the sealing layer 16 is arranged on the inner side of the anticorrosive layer 15, the reinforcing layer 14 can increase the overall strength of the adapter pipe 6, the anticorrosive layer 15 can enable the adapter pipe 6 to be more corrosion-resistant when in long-time contact with air leakage, the service time is increased, the lower extreme fixedly connected with drain pipe 13 of switching pipe 6, be provided with choke valve 12 on the drain pipe 13, can discharge the comdenstion water by the drain valve through opening choke valve 12, first connecting pipe 1, first flange 3, second flange 4, third flange 7, fourth flange 8 and second connecting pipe 9 are the almag material, first flange 3 and first connecting pipe 1 and second flange 4, third flange 7 and switching pipe 6 and fourth flange 8 are welded connection with second connecting pipe 9.

The working principle is as follows: the sealing performance between the first flange 3 and the second flange 4, and between the fourth flange 8 and the third flange 7 is enhanced by inserting connection, the first flange 3 and the second flange 4, and between the fourth flange 8 and the third flange 7 can be fixed by using the first bolt 2, the first nut 5, the second bolt 10 and the second nut 11, the flow stopping pipe 18 is fixed in the adapter pipe 6 by arranging the flow stopping pipe 18 in the adapter pipe 6 by the arranged fixing ring 17, when the shaft seal leakage steam of the second connecting pipe 9 flowing to the first connecting pipe 1 passes through the adapter pipe 6, the leakage steam passes through the filter screen 19, since the condensed water generated by condensation is accumulated on the left side of the flow stopping pipe 18, the filter screen 19 is arranged at the middle position of the flow stopping pipe 18, the condensed water can not flow back through the filter screen 19, therefore, the backflow of the condensed water can be blocked, and the condensed water can be discharged from the drain valve by opening the throttle valve 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a connector for bearing seal heater, includes adapter tube (6), its characterized in that: two ends of the adapter tube (6) are respectively and fixedly connected with a second flange (4) and a third flange (7), a first connecting pipe (1) and a second connecting pipe (9) are respectively arranged at two sides of the switching pipe (6), one end of the first connecting pipe (1) is fixedly connected with a first flange (3), one end of the second connecting pipe (9) is fixedly connected with a fourth flange (8), a plurality of first bolts (2) are arranged between the first flange (3) and the second flange (4), a plurality of first nuts (5) are connected on the first bolts (2) in a threaded manner, be provided with a plurality of second bolt (10) between third flange (7) and fourth flange (8), it is a plurality of equal threaded connection has second nut (11) on second bolt (10), the inside of adapter tube (6) is provided with stagnant flow pipe (18).

2. The joining head for a shaft seal heater according to claim 1, wherein: one end of the first flange (3) is connected with the second flange (4) in an inserting mode, and one end of the fourth flange (8) is connected with the third flange (7) in an inserting mode.

3. The joining head for a shaft seal heater according to claim 1, wherein: a filter screen (19) is embedded in one end of the flow stopping pipe (18), and a fixing ring (17) is fixedly connected to the other end of the flow stopping pipe (18).

4. The joining head for a shaft seal heater according to claim 1, wherein: the adapter tube (6) comprises a reinforcing layer (14), an anticorrosive layer (15) and a sealing layer (16), wherein the reinforcing layer (14) is arranged on the outer side, the anticorrosive layer (15) is arranged on the inner side of the reinforcing layer (14), and the sealing layer (16) is arranged on the inner side of the anticorrosive layer (15).

5. The joining head for a shaft seal heater according to claim 1, wherein: the lower extreme fixedly connected with drain pipe (13) of switching pipe (6), be provided with choke valve (12) on drain pipe (13).

6. The joining head for a shaft seal heater according to claim 1, wherein: first connecting pipe (1), first flange (3), second flange (4), third flange (7), fourth flange (8) and second connecting pipe (9) are the almag material, first flange (3) and first connecting pipe (1) and second flange (4), third flange (7) and switching pipe (6) and fourth flange (8) and second connecting pipe (9) are welded connection.